Fix the content_browsertests everywhere maybe.

content/shell/shell.h

Index: content/shell/shell.h
diff --git a/content/shell/shell.h b/content/shell/shell.h
index 82e2a6a233bd3956fcdd0d729be57c12473f70a5..e2162e8c27212b99b405837b3747ef486164b06c 100644
--- a/content/shell/shell.h
+++ b/content/shell/shell.h
@@ -1,7 +1,6 @@
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-
 #ifndef CONTENT_SHELL_SHELL_H_
 #define CONTENT_SHELL_SHELL_H_
 
@@ -27,15 +26,15 @@ typedef struct _GtkToolItem GtkToolItem;
 #elif defined(OS_ANDROID)
 #include "base/android/scoped_java_ref.h"
 #elif defined(USE_AURA)
+#if defined(OS_CHROMEOS)
+namespace content {
+class MinimalAsh;
+}
+#endif
 namespace views {
 class Widget;
 class ViewsDelegate;
 }
-namespace aura {
-namespace client {
-class StackingClient;
-}
-}
 #endif
 
 class GURL;
@@ -237,7 +236,9 @@ class Shell : public WebContentsDelegate,
 #elif defined(OS_ANDROID)
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
 #elif defined(USE_AURA)
-  static aura::client::StackingClient* stacking_client_;
+#if defined(OS_CHROMEOS)
+  static content::MinimalAsh* minimal_ash_;
+#endif
   static views::ViewsDelegate* views_delegate_;
 
   views::Widget* window_widget_;